Rotary valve for engines.



H. HOPKES.

ROTARY VALVE FOR ENGINES. APPLICATION FILED MAR. z, 1912.

Patented June 2, 1914.

. wane/000,0

3 k @133 m x.

' t'ain new and useful Improvements in I-IARTENSTEIN AND ONE-HALE 1'13 MICHIGAN.

RUTARY VAL 3 E nooersm.

Specification 0 To (ZZZ 11']: mn. it may (om-0r 'Be it known that I, HENRY Hoenns, a citizen of the United States of i imerica siding at Detroiflin the county of Jayne and State of Michigan, have invented eer- Rofolluicl tal'y Valves for l higinea of which the lowing is a specification, reference being therein to the accompanying drawings.

This" invention relates to iinpi-ovenienl's in internal combustion engines: fllil'l more particularly to a rotary valve construction for Such. engines.

The object of the invention is to provide a simple, cheap. eompaet and eilieienl' alve (construction \Vlll('ll is so made that it may be readily assembled. and :niliusted. to give the proper timing of the opening of the ports and the invention consists in the mat lei-s hereinafter set forth and more partieularlv pointed out in the elaims reference heiug' had to the fl(!('( il1])un \ln 1 thawing. in \\'lll(ll* Figure l is a vertical longitudinal scetion through the upper portion of the cylinders of an engine anti a valve construction embodying the invention applied thereto: and Fig. 3 is; a transverse seetion of the same upon line if? of Fig. l.

Application filed March 2, 19153.-

l g i, l l I l l I l l i .Jettci's Patent.

imme. if.

Serial No. 681.21%.

index-s at (RJ'il end of the motor to supplv eoinhustible ehai-ges thereto. The casing 1S bored iougittulinally to form a for a valve and an inlet port 9 and an exhaust port 10 is turmoil in the bottom of the casing to open tlirertlyjinto the upper (.Illl or explosion chamber in each evliinlei'.

The valve consists of a shaft 11 upon which srrun 1 g 108 of r'vlimlrieal sleeves 1TH" 1, Y 01 u 0 vunnnueixs l2. one sleeve opposite the upper end of each uj'lliflltl' and tlu sleeves ilach :cyiizulrival ll'lf'lil lvl or leeve is thus nnuie hollow or provided \vitha (llklliliilli' 1G in one eznl anti a like 'l?;11)'1l)(-1' 'l posil'e einl. I

the

' 5 in the opsani (humble-s opening through I 1 nuuulwi' aiul foi'uiin pails and \hausl' nasa es:

in s :i

For convenience of illustration the invenii in ('asin -J i3 Lion is shown an appliml to a i ()ill'\ \(l0 en gg min? 'l m jg'ine. the evlintlers of which are cast an 520/: 1 i ni i i g; hut i! will he understood that it may he up (1 oniinuni catee pliml to engines having: any number of i-ylthe int ovli E i 1 iiu ew cast as desired. Th vernl yliinioi's the val-l1: ie'tiu'neil in me Rafi-(l poi-t into I are van with a water e2 5? llEHl fornml reg. lei "with the port iu the heail oi th al their upper ends with a sent for a (le u liiujlei' and lilo: or opening Qt; is

J usual manner J" invite-t I 2 of the ejl'liiuiei's. Neal each end ot the I c2 1;; 5 is a laterally extending: exhaust passage '7 and a similar passage is prmilled niie'nnecliate its ends substantially opp the space between the two middle cylincle Two intake passages 8 extend laterally from the casing in a direction opposite to that of the exhaust passages and these intake "omsages are located substantially in the planes of the spaces between the two adjacent cyl- :llll of each valve {n min the l the imnluvts nunhei' li'i exnauet. pasany screwed Lit) ti; prevented tron members 2%.

, I wing and are ny means of lo king 1 anti sc valve members 0 re turned by means of a secured upon oneentl of the shaft and to actuate the valve in proper timed relation to the movement of the several engine pistons, a chain belt 27 engages the sprocket wheel and is driven in any suitable inanner (not shown) as by a wheel on the crank sliaftof the engine. Obviously the valve shaft may be turned by other means and changes may be made in the construction and arrangement of the valve and its parts without departing from the spirit of my invention. I therefore do not wish to limit myself to the particular form, construction. or arrangement shown.

Having thus fully described my invention what I claim is,:-

l. The combination with a plurality of engine cylinders, of a head secured upon said cylinders and formed with a cylindrical valve casing extending across the several cylinders, said casing being provided with a common inlet and a common exhaust passage for adjacent cylinders and with two ports opening into the upper end of each cylinder, a shaft in the axis of-the casing, a cylindrical valve member for each cylinder fitting within the casing and each formed a with a transverse wall. intermediateiits ends thereof, a shaft in the longitudinal axis of providing a chamber at each end of the member communicating with the inlet and exhaust passages and forming a bearing for said shaft, said members being secured in spaced relation upon said shaft and pro vided with ports to register with the ports in the casing, and means for actuating the shaft. i

2. The combination with a plurality of engine cylinders, of a head secured upon the upper ends of said cylinders formed with a cylindrical valve casing extending across the several cylinders and forming a valve seat having ports opening into the upper ends of the several cylinders said 'head being also formed with intake and exhaustpassages extending laterally from the valve casing and communicating with the inter or said valve casing, bearings for said shaft in the ends of said valve casing, a cylindrical valve member fitting within the valve casa ing opposite the upper end of each cylinder,

said valve members beii'ig secured upon said shaft in spaced relation to form passages between their adjacent ends communicating with the inlet and exhaust 3 passages in the head,'and each valve member being formed with a transverse wall through which the shaft extends and in which it is secured, said wall forming a chamber in each end of the memberopening through said end, and each member bein formed with a port in the side of each oi: said chambers adapted to reg-i ister with the ports in the casing, and means for turning the shaft to turn the several valve members.

3. The combination with a plurality of engine cylinders having water ackets, of a head secured upon the upper ends of said cylinders and formed with a cylindrical valve casin extending horizontally through the head rom end to end thereofwith a water jacket surrounding the casin in communication with the water jacket 0 the cylinders, said head being also formed with intakeand exhaust passages extending lat erally from and. opening into said casing and said casing being provided with ports at its lower side opening into the upper end of each cylinder, hearings in the ends of said casing, a shaft mounted in said bearings, a plurality of cylindrical valve members fitting within the casing and each formed with a transverse wall throu h which the shaft extends and. in which said shaft is secured to hold said members s aced apart with passages between their adjacent ends communicating with the intake and exhaust passages, said wall forming a chamber in each end of each member opening through said ends into the spaces between the members, and each mem er being provided with ports inits' side opening into said chambers and adapted to register with the ports in the casing opening'into the cylinders, and means secured to the outer end of said shaft outside of one of its end bearings to turn the valve members within the casing.

In testimony whereof I afiix' my signature in presence of two witnesses.

HENRY HOPKES. Witnesses:

LEWIS E; FLANDERS, ANNA M. DORR. v 

